Device for testing softening breakdown resistance of aluminum enameled wire

Abstract

An aluminum enameled wire softening breakdown resistance testing device comprises a base, a testing assembly is arranged on the upper side of the base, tensioning and twisting devices are slidably connected to the two sides of the upper portion of the base, two aluminum enameled wires which are arranged in a crossed mode are arranged between the two tensioning and twisting devices, and the aluminum enameled wires penetrate through the testing assembly. And the two tensioning and twisting devices are matched to mutually twist and wind the two crossed aluminum enameled wires together. The method has the advantages that the metal part at one end of the aluminum enameled wire is crushed while the insulating sheath part is reserved, and the insulating sheath part at the other end of the aluminum enameled wire is crushed while the metal part is reserved. Therefore, when the stripping performance test is carried out, one end clamps the insulating skin part, and the other end clamps the metal part, so that the metal part and the insulating skin part do not influence each other when the stripping performance test is carried out, and the test result is more accurate.

Description

Technical Field

[0001] This invention relates to the field of aluminum enameled wire production technology, and in particular to a device for testing the softening breakdown resistance of aluminum enameled wire. Background Technology

[0002] This study evaluates the resistance of aluminum enameled wire coating to softening, cracking, and breakdown under the combined effects of high temperature and mechanical stress. This directly relates to the reliability and lifespan of motors, transformers, and other electronic devices operating in high-temperature environments. Existing tests for softening and breakdown resistance of aluminum enameled wire (see...) Figure 5 Two aluminum enameled wires 9 are placed crosswise on a workbench 100. After heating, the intersection of the two aluminum enameled wires 9 is squeezed by an extrusion plate 200, causing the aluminum enameled wires 9 to deform under pressure. This process is used to check whether the aluminum enameled wires 9 have been punctured. However, this method only tests one point of the aluminum enameled wire 9 at a time, resulting in too few test points and inaccurate results. If multiple points need to be tested, the aluminum enameled wires 9 need to be moved and heated to the specified temperature multiple times. Therefore, the testing device in the prior art has low testing efficiency and low testing accuracy. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for testing the softening breakdown resistance of aluminum enameled wire.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A device for testing the softening breakdown resistance of aluminum enameled wire includes a base, a test component on the upper side of the base, and tensioning and twisting devices slidably connected to both sides of the upper part of the base. Two aluminum enameled wires are arranged in a cross configuration between the two tensioning and twisting devices. The aluminum enameled wires pass through the test component. The two tensioning and twisting devices cooperate to twist and entangle the two cross configuration aluminum enameled wires together.

[0005] Furthermore, the test assembly includes a fixed plate with a set of fixed frames on both sides. A movable plate is provided above the fixed plate, which can slide up and down along the fixed frames. A lifting device is installed on the upper side of the fixed frames to drive the movable plate to move up and down. Both the fixed plate and the movable plate are electric heating plates.

[0006] Furthermore, auxiliary testing units are provided on both sides of the fixed plate. Each auxiliary testing unit includes a sliding block that can slide horizontally back and forth on one side of the fixed plate. A first hydraulic cylinder is mounted on the sliding block, and a clamping device is mounted on the telescopic end of the first hydraulic cylinder.

[0007] Furthermore, a translation device is provided on the fixed plate, which is used to drive the sliding block to move horizontally back and forth.

[0008] Furthermore, the translation device includes a slide rod and a lead screw. The slide rod is fixed between the fixed frames, and the lead screw rotates between the fixed frames. A first motor is mounted on the fixed frame to drive the lead screw to rotate. A lead screw nut is mounted on the slide block, and the lead screw and the lead screw nut are threadedly connected.

[0009] Furthermore, the lifting device includes a bracket, which is installed on the upper side of the fixed frame. A second hydraulic cylinder is mounted on the bracket, and the telescopic end of the second hydraulic cylinder is fixed to the moving plate.

[0010] Furthermore, the tensioning and twisting device includes a sliding plate that can slide along a groove above the base. Baffles are fixed on both sides of the sliding plate, and a vertical plate is fixedly connected between the two baffles. A second motor is fixedly connected to one side of the vertical plate, and a rotating plate is fixedly connected to the main shaft of the second motor. Clamping components are mounted on the rotating plate.

[0011] Advantages of this invention: By using two tensioning and twisting devices in combination, two intersecting aluminum enameled wires are twisted and wound together. The twisted and wound aluminum enameled wires are then heated, thereby achieving a softening breakdown resistance test on the aluminum enameled wires. Under the clamping force of the clamping device, the two aluminum enameled wires can be more tightly bonded together, thus further improving the test results. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the basic structure of an aluminum enameled wire softening breakdown resistance testing device provided by the present invention.

[0013] Figure 2 This is a schematic diagram of the basic structure of the test component.

[0014] Figure 3 yes Figure 1 Top view.

[0015] Figure 4 This is a basic structural diagram.

[0016] Figure 5 This is a schematic diagram of the basic structure of the existing aluminum enameled wire softening breakdown resistance test device. Detailed Implementation Example

[0017] like Figures 1-4 As shown, an aluminum enameled wire softening breakdown resistance test device of this embodiment includes a base 1, a test component 2 is provided on the upper side of the base 1, the test component 2 includes a fixing plate 22, and a set of fixing brackets 21 are installed on both sides of the fixing plate 22. Each set of fixing brackets 21 consists of two brackets and is arranged at both ends of the fixing plate 22.

[0018] A movable plate 25 is provided above the fixed plate 22. The movable plate 25 can slide up and down along the fixed frame 21. A lifting device is installed on the upper side of the fixed frame 21. The lifting device is used to drive the movable plate 25 to move up and down. The lifting device includes a bracket 23, which is installed on the upper side of the fixed frame 21. A second hydraulic cylinder 24 is installed on the bracket 23. The telescopic end of the second hydraulic cylinder 24 is fixed to the movable plate 25. Both the fixed plate 22 and the movable plate 25 are electric heating plates. During use, the aluminum enameled wire 9 is heated by the heating function of the fixed plate 22 and the movable plate 25 to prepare for the softening breakdown resistance test of the aluminum enameled wire.

[0019] Both sides of the base 1 are slidably connected to tensioning and twisting devices 3. Two intersecting aluminum enameled wires 9 are provided between the two tensioning and twisting devices 3. The aluminum enameled wires 9 pass through the fixed plate 22 and the moving plate 25. The two tensioning and twisting devices 3 work together to twist and entangle the two intersecting aluminum enameled wires 9 together. The tensioning and twisting device 3 includes a sliding plate 31, which can slide along the slide groove 11 above the base 1. Baffles 32 are fixed on both sides of the sliding plate 31. A vertical plate 33 is fixedly connected between the two baffles 32. A second motor 34 is fixedly connected to one side of the vertical plate 33. A rotating plate 35 is fixedly connected to the main shaft of the second motor 34. A clamping member 36 is mounted on the rotating plate 35. The clamping member 36 is used to clamp the end of the aluminum enameled wire 9. The clamping member 36 is prior art, and the way the clamping member 36 clamps the aluminum enameled wire 9 is also prior art, and will not be described in detail here.

[0020] In operation, the moving plate 25 is first raised using a lifting device. Two aluminum enameled wires 9 are then passed between the moving plate 25 and the fixed plate 22, and their ends are clamped by clamping devices 36. A second motor 34 then drives a rotating plate 35 to rotate. The two rotating plates 35 rotate in opposite directions, causing the two aluminum enameled wires 9 to twist and intertwine during rotation. This arrangement allows for multiple connection points between the two aluminum enameled wires 9, enabling simultaneous testing of multiple points, resulting in faster and more accurate testing. After the aluminum enameled wires 9 are twisted and intertwined, the moving plate 25 is lowered using the lifting device, and the twisted and intertwined aluminum enameled wires 9 are heated, thus achieving the softening breakdown resistance test for the aluminum enameled wires. How to detect whether the aluminum enameled wire has been broken down is existing technology and will not be elaborated upon here.

[0021] In a preferred embodiment of the present invention, to further improve the testing effect on aluminum enameled wire, auxiliary testing units 4 are provided on both sides of the fixed plate 22. Each auxiliary testing unit 4 includes a sliding block 42, which can slide horizontally back and forth on one side of the fixed plate 22. A translation device is also provided on the fixed plate 22 to drive the sliding block 42 to move horizontally back and forth. The translation device includes a sliding rod 41 and a lead screw 45. The sliding rod 41 is fixed between the fixed frames 21, and the lead screw 45 rotates between the fixed frames 21. A first motor is mounted on the fixed frame 21 to drive the lead screw 45 to rotate. A lead screw nut is mounted on the sliding block 42, and the lead screw 45 and the lead screw nut are threadedly connected. A first hydraulic cylinder 43 is mounted on the sliding block 42, and a clamping device 44 is mounted on the telescopic end of the first hydraulic cylinder 43. The clamping device 44 is also existing technology. During use, after the aluminum enameled wire 9 is heated and the moving plate 25 is raised, the first hydraulic cylinder 43 pushes the clamping device 44 to extend between the fixed plate 22 and the moving plate 25. The clamping device 44 clamps the twisted and wound aluminum enameled wire 9. Under the clamping force of the clamping device 44, the two aluminum enameled wires 9 can fit together more tightly, thus further improving the test effect. The sliding block 42 can be moved horizontally, allowing the clamping device 44 to perform auxiliary tests on different positions of the aluminum enameled wire. In addition, by keeping the two clamping devices 44 misaligned, and then pushing the clamping device 44 longitudinally by the first hydraulic cylinder 43 while keeping the two clamping devices 44 moving in opposite directions, the clamping device 44 can generate a tensile force on the aluminum enameled wire to achieve a violent test. If the aluminum enameled wire is not punctured in this state, it proves that the aluminum enameled wire has extremely good resistance to softening and breakdown.

Claims

1. An aluminum enameled wire softening breakdown resistance testing device, characterized by: The utility model provides a test device for aluminum wire, including base (1), the upside of base (1) is equipped with test assembly (2), the upside of base (1) both sides are slidably connected tensioning and distortion device (3), two tensioning and distortion devices (3) between being equipped with two cross arrangement aluminum wire (9), and the aluminum wire (9) passes through from test assembly (2), and two tensioning and distortion devices (3) can be twisted and wound together with two cross arrangement aluminum wire (9) each other with the cooperation of.

2. The softening breakdown resistance testing device for aluminum wire with enamel coating according to claim 1, characterized in that: The test assembly (2) includes a fixed plate (22), a set of fixed frame (21) is installed on both sides of the fixed plate (22), a moving plate (25) is arranged above the fixed plate (22), the moving plate (25) can slide up and down along the fixed frame (21), a lifting device is installed on the upper side of the fixed frame (21), the lifting device is used to drive the moving plate (25) to move up and down, and the fixed plate (22) and the moving plate (25) are both electric heating plates.

3. The softening breakdown resistance testing device for aluminum wire with enamel coating according to claim 2, characterized in that: Both sides of the fixed plate (22) are provided with an auxiliary test unit (4), the auxiliary test unit (4) includes a sliding block (42), the sliding block (42) can slide horizontally reciprocating on one side of the fixed plate (22), a first hydraulic cylinder (43) is installed on the sliding block (42), and a clamping device (44) is installed on the telescopic end of the first hydraulic cylinder (43).

4. The softening breakdown resistance testing device for aluminum wire with enamel coating according to claim 3, characterized in that: A translation device is further arranged on the fixed plate (22), and the translation device is used to drive the sliding block (42) to move horizontally reciprocating.

5. The softening breakdown resistant testing device for aluminum wire and cable as defined in claim 4, wherein: The translation device includes a slide rod (41) and a lead screw (45), the slide rod (41) is fixed between the fixed frames (21), the lead screw (45) rotates between the fixed frames (21), a first motor is installed on the fixed frame (21), the first motor is used to drive the lead screw (45) to rotate, a lead screw nut is installed on the sliding block (42), and the lead screw (45) is threadedly connected with the lead screw nut.

6. The softening breakdown resistant testing device for aluminum wire with enamel coating of claim 1, wherein: The lifting device includes a support (23), the support (23) is installed on the upper side of the fixed frame (21), a second hydraulic cylinder (24) is installed on the support (23), and the telescopic end of the second hydraulic cylinder (24) is fixed with the moving plate (25).

7. The softening breakdown resistant testing device for aluminum wire with enamel coating of claim 1, wherein: The tensioning and distortion device (3) includes a sliding plate (31), the sliding plate (31) can slide along the sliding groove (11) above the base (1), the sliding plate (31) is fixed with a baffle (32) on both sides, respectively, a vertical plate (33) is fixedly connected between the two baffles (32), a second motor (34) is fixedly connected on one side of the vertical plate (33), a rotating plate (35) is fixedly connected on the main shaft of the second motor (34), and a clamping piece (36) is installed on the rotating plate (35).

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